<template>
  <el-form class="login-form" status-icon :rules="loginRules" ref="loginForm" :model="loginForm" label-width="0">
    <el-form-item prop="username">
      <el-input size="small" @keyup.enter.native="handleLogin" v-model="loginForm.username" auto-complete="off" placeholder="请输入用户名">
        <i slot="prefix" class="icon-yonghu"></i>
      </el-input>
    </el-form-item>
    <el-form-item prop="password">
      <el-input size="small" @keyup.enter.native="handleLogin" :type="passwordType" v-model="loginForm.password" auto-complete="off" placeholder="请输入密码">
        <i class="el-icon-view el-input__icon" slot="suffix" @click="showPassword"></i>
        <i slot="prefix" class="icon-mima"></i>
      </el-input>
    </el-form-item>

    <el-form-item prop="code">
      <el-row :span="24">
        <el-col :span="14">
          <el-input size="small" @keyup.enter.native="handleLogin" :maxlength="code.len" v-model="loginForm.code" auto-complete="off" placeholder="请输入验证码">
            <i slot="prefix" class="icon-yanzhengma"></i>
          </el-input>
        </el-col>
        <el-col :span="10">
          <div class="login-code">
            <span class="login-code-img" @click="refreshCode" v-if="code.type == 'text'">{{code.value}}</span>
            <img :src="code.src" class="login-code-img" @click="refreshCode" v-else/>
            <!-- <i class="icon-shuaxin login-code-icon" @click="refreshCode"></i> -->
          </div>
        </el-col>
      </el-row>

    </el-form-item>
    <el-form-item>
      <el-button type="primary" size="small" @click.native.prevent="handleLogin" class="login-submit">登录</el-button>
    </el-form-item>
  </el-form>
</template>

<script>
  import { isvalidUsername } from "@/util/validate";
  import { randomLenNum } from "@/util/util";
  import { mapGetters } from "vuex";
  export default {
    name: "userlogin",
    data() {
      const validateUsername = (rule, value, callback) => {
        if (!isvalidUsername(value)) {
          callback(new Error("请输入正确的用户名"));
        } else {
          callback();
        }
      };
      const validateCode = (rule, value, callback) => {
        if (this.code.value != value) {
          this.loginForm.code = "";
          this.refreshCode();
          callback(new Error("请输入正确的验证码"));
        } else {
          callback();
        }
      };
      return {
        loginForm: {
          username: "admin",
          password: "123456",
          code: "",
          redomStr: ""
        },
        code: {
          src: "",
          value: "",
          len: 4,
          type: "text"
        },
        loginRules: {
          username: [
            { required: true, trigger: "blur", validator: validateUsername }
          ],
          password: [
            { required: true, message: "请输入密码", trigger: "blur" },
            { min: 6, message: "密码长度最少为6位", trigger: "blur" }
          ],
          code: [
            { required: true, message: "请输入验证码", trigger: "blur" },
            { min: 4, max: 4, message: "验证码长度为4位", trigger: "blur" },
            { required: true, trigger: "blur", validator: validateCode }
          ]
        },
        passwordType: "password"
      };
    },
    created() {
      this.refreshCode();
    },
    mounted() {},
    computed: {
      ...mapGetters(["tagWel"])
    },
    props: [],
    methods: {
      refreshCode() {
        this.loginForm.redomStr = randomLenNum(this.code.len, true);
        this.code.type == "text"
          ? (this.code.value = randomLenNum(this.code.len))
          : (this.code.src = `${this.codeUrl}/${this.loginForm.redomStr}`);
        this.loginForm.code = this.code.value;
      },
      showPassword() {
        this.passwordType == ""
          ? (this.passwordType = "password")
          : (this.passwordType = "");
      },
      handleLogin() {
        this.$refs.loginForm.validate(valid => {
          if (valid) {
            this.$store.dispatch("LoginByUsername", this.loginForm).then(res => {
              this.$router.push({ path: this.tagWel.value });
            });
          }
        });
      }
    }
  };
</script>

<style>

</style>
